chromium/third_party/blink/web_tests/external/wpt/navigation-timing/nav2-data-uri.html

<!DOCTYPE html>
<title>data URL source for navigation-timing/nav2_test_open_data_uri.html</title>
<!-- NB: this file isn't actually used any where! -->
<link rel="author" title="Google" href="http://www.google.com/" />
<script>
var observer = new PerformanceObserver(
    function (entryList) {
        parent.postMessage("observed", "*");
        observer.disconnect();
    });
observer.observe({entryTypes: ["navigation"]});
</script>